IMO The Heat franchise/FO and fans shouldn't feel entitled for Portland to make the trade and "take whatever" just because Miami is his preferred destination. Him wanting to leave is fine, he has the right. But the reason why Portland couldn't win with Dame is because no one wanted to go there despite him being a Top 10-15 player in his prime.
So a team that historically doesn't attract free agents even when they have a Top 10-15 player while consistently making the playoffs (including a conference finals) shouldn't just take whatever. Folks make fun of who Portland has surrounded him with but I don't think it was due to shallow pockets or incompetence. They were linked to top FA's over the years but no one ever came through and now we are here.